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NOTE:
After powering off a PDM, wait at least 60 seconds before turning the circuit breaker
back on.
To remove a three-phase wye AC PDM:
1. Make sure that the voltage across the AC power source cord is 0 V and that there is no chance that
the cord might become active during the removal process.
2. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
3. Remove the ESD grounding strap from the ESD point on the chassis, and attach it to an approved site
ESD grounding point. See instructions for your site.
4. Disconnect the AC power cord (see
Figure 195: Three-Phase Wye AC Power Cord
5. Remove the ESD grounding strap from the approved site ESD grounding point. See the instructions
for your site. Reconnect the strap to one of the ESD points on the chassis.
6. Using a number 2 Phillips (+) screwdriver, loosen the four screws on the cover of the metal wiring
compartment that protects the AC terminal block.
7. Remove the cover of the metal AC wiring compartment.
Figure 195 on page
447) from the power source.
447
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